If you could stop any event in history from happening, what would it be?

Here's @DennisPrager's answer 👇 https://t.co/u6UBU0zaLc https://video.twimg.com/ext_tw_video/1798443623098572800/pu/vid/avc1/720x720/8VlTUKLSaIrXZeWZ.mp4?tag=12